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A252885 Number of (3+2)X(n+2) 0..2 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order 1

%I #4 Dec 24 2014 09:07:09

%S 18931,175360,1769486,18443090,194162037,2048947027,21664764833,

%T 229288736507,2428049723198,25721944590553,272531782389953,

%U 2887876599290471,30603380003328253,324319086764842024

%N Number of (3+2)X(n+2) 0..2 arrays with every consecutive three elements in every row having 2 or 3 distinct values, in every column 1 or 2 distinct values, in every diagonal 2 distinct values, and in every antidiagonal 2 distinct values, and new values 0 upwards introduced in row major order

%C Row 3 of A252882

%H R. H. Hardin, <a href="/A252885/b252885.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..0..1..0....0..0..1..1....0..1..1..0....0..1..0..0....0..1..0..0

%e ..1..0..1..0....0..1..0..1....0..1..1..0....0..1..1..2....1..0..0..1

%e ..0..0..2..0....0..0..1..1....0..1..0..2....0..1..0..0....1..1..2..1

%e ..1..2..1..0....2..0..1..0....2..2..1..0....2..2..1..0....1..1..2..2

%e ..0..0..2..1....0..0..1..1....0..1..0..2....2..1..0..0....1..2..0..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 24 2014

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)